P1803

P1802, P1803, P1804, P1809 TRANSFER CONTROL UNIT

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Perform self-diagnosis for "ALL MODE AWD/4WD".
Are DTC's "P1802, P1803, P1804 or P1809" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. PERFORM SELF-DIAGNOSIS

With CONSULT
1.Erase self-diagnostic results for "ALL MODE AWD/4WD".
2.Turn the ignition switch OFF, and then wait 10 seconds and more.
3.Perform self-diagnosis for "ALL MODE AWD/4WD".
Are DTC's "P1802, P1803, P1804 or 1809" detected?
YES- Replace transfer control unit. Refer to "Removal and Installation" Service and Repair.
NO- Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace error-detected parts.